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Experimental comparison of first and second-order similarities in a scientometric context
Stockholm University, University Library.
2012 (English)In: Scientometrics, ISSN 0138-9130, E-ISSN 1588-2861, Vol. 90, no 2, p. 675-685Article in journal (Refereed) Published
Abstract [en]

The measurement of similarity between objects plays a role in several scientific areas. In this article, we deal with document-document similarity in a scientometric context. We compare experimentally, using a large dataset, first-order with second-order similarities with respect to the overall quality of partitions of the dataset, where the partitions are obtained on the basis of optimizing weighted modularity. The quality of a partition is defined in terms of textual coherence. The results show that the second-order approach consistently outperforms the first-order approach. Each difference between the two approaches in overall partition quality values is significant at the 0.01 level.

Place, publisher, year, edition, pages
2012. Vol. 90, no 2, p. 675-685
Keyword [en]
Bibliographic coupling, Cluster analysis, Document-document similarity, Science mapping, Similarity order, Textual coherence
National Category
Other Social Sciences
Research subject
biblioteks- och informationsvetenskap
Identifiers
URN: urn:nbn:se:su:diva-74494DOI: 10.1007/s11192-011-0491-xISI: 000299088900021OAI: oai:DiVA.org:su-74494DiVA, id: diva2:509943
Available from: 2012-03-14 Created: 2012-03-14 Last updated: 2017-12-07

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